Michael Grayum 8152 Det. by: J. Strother, 1990 Phenology: FR 11 March 1987 09:32N 83:42W 2400 m SAN JOSE, PEREZ ZELEDON Cordillera de Talamanca. Common herbs in weedy roadside situation. Fls. yellow. Mostly in seed.
J.F. Morales 998 Det. by: J. F. Morales, I 1993 Phenology: FL 5 January 1993 09:43N 84:23W 450 m SAN JOSE, PURISCAL Z.P. La Cangreja Cerros de Puriscal. Planta de 1.5 m. Flores amarillas. El follaje tiene un olor fuerte, penetrante y desagradable.